I've just had a quick glance through the wiki bug page. Many of them (I believe) aren't bugs - even a couple that I thought were, and documented in this topic, I have learned aren't actually bugs. I've got a busy day ahead of me today, I'll try and update this topic in the coming days to remove the "bugs" that aren't bugs, and add the ones that are missing.

Yeah, but most of those you are talking about are mostly unexpected features of the GTA SA engine that definitely look bugged. You can't do anything with most of those unexpected edge cases.

The missing animation when a player is entering a locked vehicle(SetVehicleParamsEx) as driver the locked animation is not showing. While entering a locked vehicle as passenger the animation shows fine.